Inner and outer barrel components of drum washing machine

Abstract

The present invention discloses an inner and outer barrel assembly of a drum washing machine, and relates to the technical field of washing machines. The present invention comprises an outer barrel and an inner barrel; the outer barrel comprises an outer barrel front section and an outer barrel rear section; the outer barrel front section is fixed with a first flange; a ring strip is fixed on one side of the first flange close to the outer barrel rear section, and a ring rib plate is fixed on the other side; the outer barrel rear section is fixed with a second flange; the second flange is provided with an annular groove; the annular groove corresponds to the position of the annular strip and is welded and fixed, and the depth of the annular groove is less than the protruding height of the annular strip; the inner barrel is a conical structure, and the inner diameter decreases from the inside to the outside. The present invention solves the problem of poor sound insulation and waterproofing effects of the existing outer barrel screw connection by welding the annular strip on the outer barrel front section with the annular groove on the outer barrel rear section; by setting the inner barrel to be conical, the clothes are easily kept inside the inner barrel, the stability of the inner barrel during operation is improved, the vibration of the inner barrel and the generation of noise are reduced, and the overall performance of the washing machine is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of washing machines, and in particular relates to an inner and outer barrel assembly of a drum washing machine. Background Art

[0002] Drum washing machines are the most popular models on the market today. The barrel assembly is divided into an inner barrel and an outer barrel. The inner barrel affects the washing and dehydration performance of clothes, while the outer barrel affects the sealing and noise performance of the washing machine.

[0003] The washing principle of a drum washing machine is to beat the clothes, that is, the inner drum rotates and drives the clothes to the top of the inner drum, and then the clothes fall down to beat, thereby removing stains on the clothes. During the washing stage, the greater the height difference formed by the inner drum, the more powerful the clothes are beaten, and the better the washing effect. However, when the drum washing machine body and outer drum are fixed, and a certain safety gap must be left between the outer drum and the inner drum of the washing machine body, it is difficult to significantly increase the diameter of the inner drum.

[0004] The dehydration principle of a drum washing machine is that the shaft fixed at the rear of the inner barrel rotates to drive the inner barrel to rotate horizontally at a high speed. The clothes are adsorbed on the wall of the inner barrel, and the water on the clothes is removed by centrifugal force. During the dehydration stage, the inner barrel rotates at a high speed. The part close to the shaft has a small elastic deformation and produces weak noise. The part far from the shaft has a large elastic deformation and produces strong noise.

[0005] The traditional outer barrel is usually connected with screws, and the front and back of the outer barrel are fixed with screws, which increases labor costs and has poor sealing. If the screws are not tightened and a certain gap is left, first, serious washing machine accidents may occur, such as water leakage causing flooding in the home or causing electric leakage. Second, the noise from the high-speed rotation of the inner barrel when dehydrating is easy to spread. Summary of the invention

[0006] The purpose of the present invention is to provide an inner and outer barrel assembly of a drum washing machine, which solves the problem of poor sound insulation and waterproofing effects of the existing outer barrel screw connection by welding the annular strip on the front section of the outer barrel with the annular groove on the rear section of the outer barrel; and solves the problem of the existing inner barrel rotating vibration and loud noise due to the inner barrel being easily away from the rotating shaft during dehydration by setting the inner barrel into a cone shape so as to keep the clothes close to the end of the rotating shaft.

[0007] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0008] The present invention is an inner and outer barrel assembly of a drum washing machine, comprising an outer barrel and an inner barrel; the outer barrel comprises an outer barrel front section and an outer barrel rear section; the outer barrel front section and the outer barrel rear section are fixedly connected;

[0009] A first flange is fixedly connected to the peripheral side surface of the front section of the outer barrel near one end of the rear section of the outer barrel; a ring strip is fixedly connected to the side surface of the first flange near the rear section of the outer barrel; and a ring rib is fixedly connected to the side surface of the first flange away from the rear section of the outer barrel;

[0010] A second flange is fixedly connected to the peripheral side surface of the rear section of the outer barrel near one end of the front section of the outer barrel; a circular groove is formed on a side surface of the second flange near the front section of the outer barrel; the circular groove corresponds to the position of the circular strip and is fixed by welding, and the depth of the circular groove is less than the protruding height of the circular strip;

[0011] The inner barrel is located inside the outer barrel and is rotatably connected to the rear section of the outer barrel; the inner barrel is a conical structure, and the inner diameter decreases from the inside to the outside; a diameter-changing portion is provided on the side wall of the inner barrel near the outer side.

[0012] Furthermore, a plurality of first reinforcing ribs are fixedly connected between the annular rib plate, the first flange and the peripheral side surface of the front section of the outer barrel.

[0013] Furthermore, a plurality of second reinforcing ribs are fixedly connected between the side surface of the second flange and the peripheral side surface of the rear section of the outer barrel.

[0014] Furthermore, the cross-sectional shape of the annular groove is an isosceles trapezoid.

[0015] The present invention has the following beneficial effects:

[0016] 1. The present invention provides an annular strip on the front section of the outer barrel and welds it with an annular groove on the rear section of the outer barrel, thereby increasing the connection strength between the front section of the outer barrel and the rear section of the outer barrel, while improving the overall sealing and sound insulation effect of the outer barrel, thereby avoiding the situation where insufficient connection due to screw connection affects the service life and safety performance of the washing machine.

[0017] 2. The present invention sets the inner drum into a cone shape, so that the clothes can be easily kept on the inner shaft position of the inner drum when washing or dehydrating, thereby improving the stability of the inner drum during operation, reducing the vibration and noise of the inner drum, and improving the overall performance of the washing machine.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0020] Figure 1It is a schematic diagram of a half-section structure of an inner and outer barrel assembly of a drum washing machine of the present invention;

[0021] Figure 2 It is a schematic diagram of the half-section structure of the outer barrel;

[0022] Figure 3 for Figure 2 A schematic diagram of the structure of the middle A part;

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1-inner barrel, 2-front section of outer barrel, 3-rear section of outer barrel, 101-diameter reducing portion, 201-first flange, 202-annular strip, 203-annular rib plate, 301-second flange, 302-annular groove. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0027] See also Figure 1-3 As shown, the present invention is an inner and outer barrel assembly of a drum washing machine, comprising an outer barrel and an inner barrel 1; the outer barrel comprises an outer barrel front section 2 and an outer barrel rear section 3; the outer barrel front section 2 and the outer barrel rear section 3 are fixedly connected.

[0028] A first flange 201 is welded to the peripheral side surface of the outer barrel front section 2 near one end of the outer barrel rear section 3; a ring strip 202 is welded to the side surface of the first flange 201 near the outer barrel rear section 3; and a ring rib 203 is welded to the side surface of the first flange 201 away from the outer barrel rear section 3;

[0029] The first flange 201, the annular strip 202 and the annular rib plate 203 may be an integrated structure to ensure structural strength.

[0030] A second flange 301 is welded to the peripheral side surface of the outer barrel rear section 3 near one end of the outer barrel front section 2; a circular groove 302 is formed on a side surface of the second flange 301 near the outer barrel front section 2; the circular groove 302 corresponds to the position of the circular strip 202 and is welded and fixed, and the depth of the circular groove 302 is less than the protruding height of the circular strip 202;

[0031] The welding method adopts vibration friction welding, so that the annular strip 202 and the inner side surface of the annular groove 302 are frictionally melted and welded together. At the same time, the contact surface of the first flange 201 and the second flange 301 can also be welded at the same time, thereby greatly improving the structural strength and sealing of the outer barrel after the overall connection.

[0032] Among them, a number of first reinforcing ribs are welded between the annular rib plate 203, the first flange 201 and the two peripheral sides of the front section of the outer barrel. The first reinforcing ribs are arranged in a circular array along the two peripheral sides of the front section of the outer barrel. The annular rib plate 203 and the first reinforcing ribs are used to improve the structural strength of the first flange 201 and increase deformation resistance.

[0033] A plurality of second reinforcing ribs are fixedly connected between the side of the second flange 301 and the 3 peripheral side surfaces of the rear section of the outer barrel; the second reinforcing ribs are also arranged in a circular array along the 3 peripheral side surfaces of the rear section of the outer barrel. The first reinforcing ribs and the second reinforcing ribs can improve the deformation resistance of the first flange 201 and the second flange 301 during friction welding.

[0034] Preferably, Figure 3 As shown, the cross-sectional shape of the annular groove 302 is an isosceles trapezoid, and the inner groove width of the annular groove 302 is greater than the width of the opening, so that the annular strip 202 can be better welded and fixed to the inner surface of the annular groove 302 during friction welding, thereby improving the structural strength after welding. The depth of the annular groove 302 is less than the protruding height of the annular strip 202, so that the molten material between the annular strip 202 and the annular groove 302 can fill the inside of the annular groove 302 during friction welding, thereby making the welding more complete, the welding connection more compact, and improving the welding strength.

[0035] The inner barrel 1 is located inside the outer barrel and is rotatably connected to the rear section 3 of the outer barrel through a rotating shaft, and the rotating shaft is connected to the motor; the inner barrel 1 is a conical structure, and the inner diameter decreases gradually from the inner rotating shaft to the outer opening side, so that during the rotation of the inner barrel 1, the clothes are easily gathered toward the rotating shaft side, thereby improving the stability of the inner barrel 1 during rotation, and a reducing portion 101 is provided on the side wall of the inner barrel 1 near the outer side. The reducing portion 101 is a shrinking structure, and the inner diameter becomes smaller to improve the positioning of the clothes. The reducing portion 101 is then connected to the flange of the barrel mouth, and the flange of the barrel mouth is provided with a barrel mouth for taking and placing clothes; a bending portion is provided concentrically with the barrel mouth flange relative to the barrel mouth, and the bending portion is an arc-shaped bending structure, which is used to improve the structural strength of the barrel mouth flange; at the same time, an arc-shaped curling edge is provided on the outer side of the edge of the barrel mouth to improve the convenience of taking clothes and reduce bumps on the human body.

[0036] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An inner and outer barrel assembly of a drum washing machine, comprising an outer barrel and an inner barrel (1); characterized in that: The outer barrel comprises an outer barrel front section (2) and an outer barrel rear section (3); the outer barrel front section (2) and the outer barrel rear section (3) are fixedly connected; A first flange (201) is fixedly connected to the peripheral side surface of the outer barrel front section (2) close to one end of the outer barrel rear section (3); a ring strip (202) is fixedly connected to the side surface of the first flange (201) close to the outer barrel rear section (3); and a ring rib plate (203) is fixedly connected to the side surface of the first flange (201) away from the outer barrel rear section (3); A second flange (301) is fixedly connected to the peripheral side surface of the outer barrel rear section (3) close to one end of the outer barrel front section (2); an annular groove (302) is provided on a side surface of the second flange (301) close to the outer barrel front section (2); the annular groove (302) corresponds to the position of the annular strip (202) and is fixed by welding, and the depth of the annular groove (302) is less than the protruding height of the annular strip (202); The inner barrel (1) is located inside the outer barrel and is rotatably connected to the rear section (3) of the outer barrel; the inner barrel (1) is a conical structure, and the inner diameter decreases from the inside to the outside; a diameter reducing portion (101) is provided on the side wall of the inner barrel (1) near the outer side.

2. The inner and outer barrel assembly of a drum washing machine according to claim 1, characterized in that: A plurality of first reinforcing ribs are fixedly connected between the annular rib plate (203), the first flange (201) and the peripheral side surface of the front section (2) of the outer barrel.

3. The inner and outer barrel assembly of a drum washing machine according to claim 1, characterized in that: A plurality of second reinforcing ribs are fixedly connected between the side surface of the second flange (301) and the peripheral side surface of the rear section (3) of the outer barrel.

4. The inner and outer barrel assembly of a drum washing machine according to claim 1, characterized in that: The cross-sectional shape of the annular groove (302) is an isosceles trapezoid.

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